Drinking bottle mixer



FIG. 1 is a first perspective view of the drinking bottle mixer;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a first side view thereof;

FIG. 4 is a second side view thereof;

FIG. 5 is a third side view thereof;

FIG. 6 is a fourth side thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The dashed lines depict portions of the drinking bottle mixer that formno part of the claimed design.

CLAIM The ornamental design for a drinking bottle mixer, as shown anddescribed.